A storage redundancy system of a high-speed Ethernet switching chip

Abstract

The invention discloses a storage redundancy system of a high-speed Ethernet switching chip. The storage redundancy system comprises a plurality of transceiver modules, a GMAC module and a data caching module which are electrically connected in sequence, The plurality of GMAC modules are interacted with the control unit; The control unit is respectively interacted with the forwarding port judgmentmodule, the management unit and the frame analysis module; The frame analysis module interacts with the forwarding port judgment module through the address management module and the VLAN management module; According to the invention, the requirement of infinitely increasing the storage space of the chip is overcome, the risk of paralysis of the whole chip caused by port blocking is solved under the condition that the area of the chip is not obviously increased, the cost of the chip is reduced, and effective forwarding of exchange data is ensured. According to the storage redundancy design circuit structure, the risk of whole chip paralysis caused by port blocking is effectively solved, and effective forwarding of exchange data is guaranteed.

Description

【Technical field】 [0001] The invention belongs to the field of computer communication and network, and relates to a storage redundant system of a high-speed Ethernet switching chip, and is especially suitable for the fields of Ethernet switches, network servers, computer data storage systems and the like. For example, data service centers, large switches, etc. 【Background technique】 [0002] At present, in mainstream Ethernet switching chips, the method adopted is that all switching ports share a storage space. With the improvement of the network transmission rate and the amount of exchanged data, higher requirements are put forward for the management of the storage space of the high-speed Ethernet switch chip. However, when the link of a certain port is blocked, the data frames forwarded to the port will continue to occupy The storage space cannot be forwarded, which leads to full storage resources and eventually causes the switch chip to be paralyzed; if the capacity of t...

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Problems solved by technology

[0005] In order to effectively solve the problem that the entire storage space will be occupied when a port of an Ethernet switch chip is blocked, the present invention proposes a storage redundancy system for a high-speed Ethernet switch chip. Dedicated memory, when the link of a certain port is blocked, the data of the port will be stacked in its own dedicated storage space first, which will not affect the shared storage space, avoiding the risk of paralysis of the entire switching chip due to the blocking of a certain port. Thus ensuring the normal forwarding of data

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